119
FNCA52 TJSJ 090824
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
424 AM AST MON FEB 9 2026
DISCUSSION
FIRE DANGER WILL REMAIN LOW OVERALL TODAY, THOUGH LOCALIZED,
SHORT-TERM ELEVATIONS ARE POSSIBLE AS THE AREA BEGINS AN EARLY
DRYING TRANSITION. DESPITE ABOVE-NORMAL RAINFALL DURING THE PAST
30–60 DAYS, FINE FUELS REMAIN ABUNDANT AND INCREASINGLY RECEPTIVE,
AND KBDI VALUES REMAIN ELEVATED ACROSS CABO ROJO AND CAMP
SANTIAGO. BREEZY TO LOCALLY WINDY CONDITIONS MAY BRIEFLY FAVOR
FIRE SPREAD IN EXPOSED AREAS; HOWEVER, HIGH RELATIVE HUMIDITY WILL
CONTINUE TO LIMIT IGNITION AND SUSTAINED GROWTH. NO SIGNIFICANT
FIRE WEATHER CONCERNS ARE EXPECTED AT THIS TIME, BUT CONDITIONS
WILL BE CLOSELY MONITORED, AND FIRE WEATHER RISK WILL BE ELEVATED
AND APPROPRIATE ALERTS ISSUED IF CONDITIONS WARRANT.
PRZ014-101000-
SOUTHEAST COASTAL PLAINS-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 30
TEMP (24H TREND) 83 (+1) 67 (-2) 84
RH % (24H TREND) 46 (-12) 87 (+7) 53
WIND 20FT/EARLY(MPH) NE 17 G23 NE 16 G21 NE 20 G26
WIND 20FT/LATE(MPH) NE 17 G23 NE 16 G21 NE 20 G26
MIXING HGT(FT-AGL/MSL)5640 4400
TRANSPORT WND (MPH) N 10 NE 18
VENT RATE (KT-FT) 50760 70400
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-101000-
SOUTHERN HILLS-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30
TEMP (24H TREND) 78 (+2) 64 (-2) 79
RH % (24H TREND) 62 (-10) 94 (+10) 58
WIND 20FT/EARLY(MPH) NE 13 NE 13 NE 16
WIND 20FT/LATE(MPH) NE 13 NE 13 NE 16
MIXING HGT(FT-AGL/MSL)5190 4380
TRANSPORT WND (MPH) N 12 NE 18
VENT RATE (KT-FT) 51900 70080
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-101000-
NORTH COASTAL PLAINS-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 20
TEMP (24H TREND) 78 (-1) 68 (-2) 80
RH % (24H TREND) 66 (-4) 88 (+7) 58
WIND 20FT/EARLY(MPH) NE 17 G19 NE 16 G18 NE 19 G22
WIND 20FT/LATE(MPH) NE 17 G19 NE 16 G18 NE 19 G22
MIXING HGT(FT-AGL/MSL)4930 4600
TRANSPORT WND (MPH) NE 14 NE 20
VENT RATE (KT-FT) 59160 78200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-101000-
NORTHERN HILLS-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 10
TEMP (24H TREND) 76 (-1) 64 (-3) 79
RH % (24H TREND) 70 (-4) 92 (+6) 60
WIND 20FT/EARLY(MPH) NE 17 NE 16 NE 18
WIND 20FT/LATE(MPH) NE 17 NE 16 NE 18
MIXING HGT(FT-AGL/MSL)4780 4280
TRANSPORT WND (MPH) NE 15 NE 20
VENT RATE (KT-FT) 62140 72760
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-101000-
WEST COAST-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 10
TEMP (24H TREND) 83 (+2) 66 (-2) 83
RH % (24H TREND) 60 (-7) 87 (+6) 54
WIND 20FT/EARLY(MPH) NE 19 NE 18 G21 NE 20 G23
WIND 20FT/LATE(MPH) NE 19 NE 18 G21 NE 20 G23
MIXING HGT(FT-AGL/MSL)5080 4890
TRANSPORT WND (MPH) NE 16 NE 21
VENT RATE (KT-FT) 71120 88020
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-101000-
EASTERN INTERIOR-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 30
TEMP (24H TREND) 78 (+1) 64 (-3) 79
RH % (24H TREND) 69 (-5) 94 (+8) 60
WIND 20FT/EARLY(MPH) N 13 NE 12 NE 16
WIND 20FT/LATE(MPH) N 13 NE 12 NE 16
MIXING HGT(FT-AGL/MSL)5070 3760
TRANSPORT WND (MPH) N 13 NE 18
VENT RATE (KT-FT) 55770 60160
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-101000-
LUQUILLO MOUNTAIN RANGE-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 30
TEMP (24H TREND) 72 (-2) 62 (-4) 75
RH % (24H TREND) 75 (-1) 99 (+12) 63
WIND 20FT/EARLY(MPH) N 10 NE 10 NE 11
WIND 20FT/LATE(MPH) N 10 NE 10 NE 11
MIXING HGT(FT-AGL/MSL)4990 3410
TRANSPORT WND (MPH) N 12 NE 18
VENT RATE (KT-FT) 49900 54560
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-101000-
CENTRAL MOUNTAIN RANGE-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 20
TEMP (24H TREND) 75 (+1) 62 (-2) 77
RH % (24H TREND) 69 (-6) 96 (+7) 60
WIND 20FT/EARLY(MPH) NE 18 NE 17 NE 19
WIND 20FT/LATE(MPH) NE 18 NE 17 NE 19
MIXING HGT(FT-AGL/MSL)4640 4060
TRANSPORT WND (MPH) NE 14 NE 20
VENT RATE (KT-FT) 55680 69020
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-101000-
CAYEY MOUNTAIN RANGE-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 20
TEMP (24H TREND) 73 (-1) 63 (-2) 75
RH % (24H TREND) 74 (-3) 97 (+9) 64
WIND 20FT/EARLY(MPH) N 12 N 11 N 13
WIND 20FT/LATE(MPH) N 12 N 11 N 13
MIXING HGT(FT-AGL/MSL)5330 4220
TRANSPORT WND (MPH) N 14 NE 20
VENT RATE (KT-FT) 63960 71740
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-101000-
VIEQUES-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 30
TEMP (24H TREND) 81 (0) 69 (-3) 82
RH % (24H TREND) 59 (-5) 90 (+11) 54
WIND 20FT/EARLY(MPH) NE 16 G20 NE 17 G21 NE 19 G24
WIND 20FT/LATE(MPH) NE 16 G20 NE 17 G21 NE 19 G24
MIXING HGT(FT-AGL/MSL)4320 4630
TRANSPORT WND (MPH) N 16 NE 23
VENT RATE (KT-FT) 60480 92600
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-101000-
CULEBRA-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 30
TEMP (24H TREND) 81 (0) 69 (-5) 82
RH % (24H TREND) 61 (-4) 91 (+15) 55
WIND 20FT/EARLY(MPH) NE 14 G19 NE 16 G20 NE 19 G23
WIND 20FT/LATE(MPH) NE 14 G19 NE 16 G20 NE 19 G23
MIXING HGT(FT-AGL/MSL)4300 4660
TRANSPORT WND (MPH) N 14 NE 22
VENT RATE (KT-FT) 51600 88540
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-101000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 20 0 30
TEMP (24H TREND) 84 (+1) 66 (-3) 85
RH % (24H TREND) 46 (-10) 87 (+9) 48
WIND 20FT/EARLY(MPH) NE 20 G23 NE 20 G23 NE 24 G29
WIND 20FT/LATE(MPH) NE 20 G23 NE 20 G23 NE 24 G29
MIXING HGT(FT-AGL/MSL)5260 5160
TRANSPORT WND (MPH) NE 10 NE 14
VENT RATE (KT-FT) 47340 61920
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-101000-
SAINT THOMAS AND SAINT JOHN-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 30
TEMP (24H TREND) 79 (-2) 69 (-5) 81
RH % (24H TREND) 62 (-5) 91 (+14) 57
WIND 20FT/EARLY(MPH) NE 14 G18 NE 16 G20 NE 19 G23
WIND 20FT/LATE(MPH) NE 14 G18 NE 16 G20 NE 19 G23
MIXING HGT(FT-AGL/MSL)4280 4480
TRANSPORT WND (MPH) N 15 NE 22
VENT RATE (KT-FT) 55640 85120
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-101000-
ST CROIX-
424 AM AST MON FEB 9 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 40 30
TEMP (24H TREND) 81 (-1) 71 (-2) 81
RH % (24H TREND) 65 (-5) 89 (+7) 60
WIND 20FT/EARLY(MPH) NE 14 G18 NE 16 G19 NE 19 G23
WIND 20FT/LATE(MPH) NE 14 G18 NE 16 G19 NE 19 G23
MIXING HGT(FT-AGL/MSL)4440 4330
TRANSPORT WND (MPH) NE 16 NE 23
VENT RATE (KT-FT) 62160 86600
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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